Shock resistant fireplace



Oct. 9, 1951 C. J. ROOS.

SHOCK RESISTANT FIREPLACE 2 Sheets-Sheet 1 Filed April 28, 1948 INVENTQRATTORNEYS.

Oct. 9, 1951 c. J. ROOS 2,570,598

SHOCK RESISTANT FIREPLACE Filed April 28, 1948 2 Sheets-Sheet 2 JRooa J?M g ww a --v--rr ---na 4 9 Y Z a 6 4 INVENTOR ATTORNEYS.

Patented Oct. 9, i951 UNITED STATES Iss1 rFics 1 Claim. 1 This inventionrelates to improvements in shock resistant fireplaces. An object of theinvention is to provide an improved construction of shock resistantfireplace which will successfully resist earthquake and road shocks andvibrations and shocks or jars of other types,

Another object of the invention is to provide an improved prefabricatedreinforced concrete block shock resistant fireplace which will bereadily assembled and bonded together by ring joints between the severalblocks which are filled with mortar and rammed until the joints are freeof trapped air and are solidly filled with mortar.

A further object of the invention is to provide an improved form andconstruction of shock resistant fireplace which will be assembled andtied together by ring joints of mortar between the several blocks and bymeans of metal reinforcing bolts whose inner ends are curved and areembedded in the blocks.

A still further object of the invention is to provide an improvedpremolded shock resistant fireplace which will be highly efficient inuse and relatively inexpensive to manufacture and produce.

Other objects will appear as the description proceeds.

In the accompanying drawings which form a part of this application:

Figure l is a front elevation of the improved shock resistant fireplace.

' Fig. 2 is a sectional view taken on the line 2- 2 of Fig. 1.

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 1.

Like characters of reference are used throughout the followingspecification and the accompanying drawings to designate correspondingparts.

In carrying out the invention, there is provided an improved form andconstruction of shock resistant fireplace generally designated by thereference numeral l and a chimney therefor generally designated by thereference numeral 2.

It will be understood that the improved shock resistant fireplace I andchimneys 2 are built up block by block from precast concrete blockswhich may or may not be reinforced as desired.

A foundation or main supporting base 3 is first set in place, and a bedblock 4 is disposed thereon, said bed block 4 having an ash dump 5formed at the forward end,

By referring to Figs. 1, 2 and 3, it W111 be seen that the fireplaceblock 5 of U-shape form in cross section, is then positioned upon thebed block 4. A metal liner 1 is then positioned within the fireplaceblock 6, being spaced from the sides and rear wall of said block toprovide a surrounding airpassage 8. A transversely extending air passage9 is formed above the firepla ce opening and is in communication withthe air passage 8. This air passage 9 is closed by louvers it] while theoppositely disposed vertical openings to the air passage 8 are closed bythe metal grills II and I2 held in position by means of the invertedU-shape front plate is, which in turn is secured by the bolts 14.

The precast head stone I5 is then set upon the top of the fireplace l,and supports a metal damper throat l6 having a flange ll which restsupon the flange [8 on the metal fireplace liner 1. 'Bolts I9 secure theflange member It! to the liner 1, as clearly shown in Fig. 3 of thedrawings. A damper plate 20 is pivotally mounted in the throat l5 and isprovided with the depending actuating handle 2|. shown embedded in theheadstone l5, the same being used to support the front plate l3. Thecenter opening 22 in the headstone I5 is restricted at its lower end toprovide for the damper plate 20.

A vertical filling hole 23 is formed through the headstone I5 forreceivin mortar 24 which will be rammed by a suitable pestle ram rod(not shown) to fill in and pack the ring joint 25 in the upper edge ofthe fire lace block 6.

A mantle shelf 26 will be secured to the front top edge of the headstoneI5, by means of the hook end bo ts 2! embedded in the headstone I5, saidbolts being shown in Fig. 4 of the drawmes.

The chimney 2 will be built up by superimposed chimney blocks 28, whichwill be provided with op ositely disposed vertical filling holes 29 forfilling mortar 24 into the ring joints 3!] in the lower ends of saidblocks 28. Sections of fiue lining 3! will be disposed within thecentral openings through the chimney blocks 28, and annular spacingmembers 32 may be disposed between adjacent blocks 28. Also the upperends of the blocks 28 may be dished as at 33 to provide a mortar sealfor the joint between adjacent flue linings 3| and blocks 28.

From the foregoing description it will be apparent that the severaltypes of precast blocks will be laid in place and secured by the mortarA hooked end bolt I4 is rin joints to provide an efiicient form of shockresisting fireplace.

While the preferred embodiment of the instant invention has beenillustrated and described, it will be understood that it is not intendedto limit the scope of the invention thereto, as many minor changes indetail of construction may be resorted to without departure from thespirit of the invention.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent of the United States is:

In a shock resistant fireplace construction having a chimney, a bedblock, a substantially U-shaped fireplace block having a rear wall and agroove in the upper edge thereof mounted. on

the bed block with the open side of the U-shaped fireplace blockdisposed forwardly providing the opening for the fireplace, a hollowhead stone.

block and head stone.

4 block, superimposed chimney blocks secured together providing acontinuation of the chimney, a metal U-shaped fireplace liner disposedwithin the open side of the U-shaped fireplace block, supported inspaced relation with the rear wall thereof providing a rear hot airpassage, and forming with the side walls of the U-shaped fireplace blockand said head stone, a transverse hot air passage at the front of thefireplace communicating with the rear passage, and said metal linerextending into the damper throat further bracing the connection betweenthe fireplace CHARLES J. ROOS.

REFERENCES CITED The following references are of record in the file ofthis patent:

' UNITED STATES PATENTS Cage Mar. 1, 1938

